High-efficiency silicon metasurface mirror on a sapphire substrate

verfasst von
Mariia Matiushechkina, Andrey B. Evlyukhin, Vladimir A. Zenin, Michèle Heurs, Boris N. Chichkov
Abstract

For a possible implementation of high-efficiency Si-nanosphere metasurface mirrors functioning at telecom wavelengths in future gravitational wave detectors, exact dimensional and configuration parameters of the total system, including substrate and protective coating, have to be determined a priori. The reflectivity of such multi-layer metasurfaces with embedded Si nanoparticles and their potential limitations need to be investigated. Here we present the results on how the substrate and protective layer influence optical properties and demonstrate how dimensional and material characteristics of the structure alter light reflectivity. Additionally, we consider the impact of manufacturing imperfections, such as fluctuations of Si nanoparticle sizes and their exact placement, on the metasurface reflectivity. Finally, we demonstrate how high reflectivity of the system can be preserved under variations of the protective layer thickness, incident angle of light, and its polarization.

Organisationseinheit(en)
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme
Institut für Gravitationsphysik
Institut für Quantenoptik
QuantumFrontiers
Externe Organisation(en)
University of Southern Denmark
Typ
Artikel
Journal
Optical materials
Band
138
ISSN
0925-3467
Publikationsdatum
04.2023
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Elektronische, optische und magnetische Materialien, Atom- und Molekularphysik sowie Optik, Elektrotechnik und Elektronik, Spektroskopie, Anorganische Chemie, Physikalische und Theoretische Chemie, Organische Chemie
Elektronische Version(en)
https://doi.org/10.1016/j.optmat.2023.113618 (Zugang: Offen)